Home / 203,981.91-305,867.27-91,565.33

Finding the Fourth Proportional to 203,981.91, 305,867.27 and 91,565.33

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Solution

The fourth proportional to 203,981.91, 305,867.27 and 91,565.33 is: 137,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,981.91 : 305,867.27 = 91,565.33 : x
  2. Step 2: Convert to fraction form
    203,981.91/305,867.27 = 91,565.33/x
  3. Step 3: Cross multiply
    203,981.91x = 305,867.27 × 91,565.33
  4. Step 4: Simplify right side
    203,981.91x = 28,006,835,526.59
  5. Step 5: Solve for x
    x = 28,006,835,526.59/203,981.91
  6. Step 6: Final answer
    x = 137,300.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.